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  • From: Richard Witt <witt AT usna.edu>
  • To: Star-tpc L <Star-tpc-l AT lists.bnl.gov>
  • Subject: [[Star-tpc-l] ] TPC Meeting Minutes
  • Date: Thu, 6 Nov 2025 12:14:14 -0500

Present: Alexei, Flemming, Jim, Yuri, Gene, and myself == Hardware — Smoking oil from a pump in tunnel triggered smoke alarms — STAR magnet tripped around the same — drift velocity has been essentially stabilized (5. 55 cm/us) — temperature is
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Present: Alexei, Flemming, Jim, Yuri, Gene, and myself


== Hardware
— Smoking oil from a pump in tunnel triggered smoke alarms 
— STAR magnet tripped around the same
— drift velocity has been essentially stabilized (5.55 cm/us)
— temperature is stable in TPC air blower 
— some mild humidity issues (perhaps brought in by high winds)
— anode trips are somewhat better lately
— will ask shift crew to include information about TPC trips when logging beam loss or beam dump

== Electronics
— still the usual losses and repairs of RDOs and FEEs (usual 15% dead on average)
— one TPX RDO lost over the past week (2 total now that cannot be recovered without removing the pole tip)
— 3 HV sections are running with lower voltage


== Software
— continuing work on for hit errors for DAQ5000  


== AOB
— TPC meetings have been put back into STAR Drupal Calendar for next few months 


Best Regards,
  Richard

Sent from my iPad
-- 
"Education is the most powerful weapon which you can use to change
the world."

--Nelson Mandela

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 Richard Witt, Professor of Physics     Phone (USNA): 410-293-6675
    United States Naval Academy         Email: witt AT usna.edu
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